Encrypted seal, and secondary encryption method for strip-shaped data

Abstract

The present invention discloses an encrypted seal and a double encryption method of bar-shaped data, wherein the encrypted seal comprises a graphic text area, a seal frame, and a bar-shaped digital encryption area, wherein both the graphic text area and the bar-shaped digital encryption area are arranged within the seal frame, inside the bar-shaped digital encryption area is filled an encrypted code, the encrypted code records stamped information of a stamped file, different stamped files correspond to different encrypted codes, and the bar-shaped digital encryption area is arranged in a blank area between the graphic text area and the seal frame; the double encryption method of bar-shaped data comprises steps of obtaining a barcode or a character string to be processed, splitting the barcode or the character string to be processed, and re-splicing two code fragments with missing information. In the present invention, bar-shaped digital encryption areas are arranged to achieve anti-counterfeit encryption of seals, which is convenient for checking authenticity of seals and stamped files, and double encryption of bar-shaped data prevents others from directly reading information in the bar-shaped data, making the bar-shaped data more secure.

Dependencies are inferred from the claim text.